* {
  box-sizing: border-box;
}
body {
  font-family: Arial;
  font-size: 100%;
  padding: 10px;
  background: #f1f1f1;
}
/* 头部标题 */
.header {
  padding: 30px;
  text-align: center;
  background: white;
}
.header h1 {
  /*  font-size: 50px;  */
  font-size: 2.5em;
}
/* 导航条 */
.navtop {
  overflow: hidden;
  background-color: #333;
}
/* 导航条链接 */
.navtop a {
  float: left;
  display: block;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  /*  text-transform: lowercase;  */
  /*  text-transform: uppercase;  */
  text-transform: capitalize;
  /* 导航条 除了最后一个选项(last-child) 其他的都添加右分割线 */
  border-right: 1px solid #bbb;
  border-left: none
}
/* 导航条 最后一个选项(last-child) 添加左分割线 */
.navtop a:last-child {
  border-right: none;
  border-left: 1px solid #bbb;
}
/* 导航条链接颜色修改 */
.navtop a:hover {
  background-color: #ddd;
  color: black;
}
/* 导航条当前选中链接 */
.navtop a.active {
  background-color: #4CAF50;
  color: white;
}
/* 创建两列 */
/* 左侧栏 */
.columnleft {
  float: left;
  /* width: 80%; */
  width: 100%;
}
/* 右侧栏 */
.columnright {
  float: left;
  background-color: #f1f1f1;
  padding-left: 20px;
  /* width: 20%; */
  width: 0%;
}
/* 卡内左侧栏 */
.cardleft {
  text-align: center;
  float: left;
  width: 15%;
}
/* 卡内右侧栏 */
.cardright {
  float: right;
  padding-left: 20px;
  width: 85%;
}
/* 图像部分 */
.imgleft {
  float: left;
  width: 200px;
  width: 200px;
  padding: 20px;
  margin-bottom: 20px;
}
.imgfake {
  background-color: #aaa;
  width: 100%;
  padding: 20px;
}
/* 文章卡片效果 */
.card {
  background-color: white;
  padding: 20px;
  margin-top: 20px;
  margin-bottom: 20px;
  line-height: 1.5;
  font-size: 20px;
}
/* 列后面清除浮动 */
.row:after {
  content: "";
  display: table;
  clear: both;
}
/* 列后面清除浮动 */
.card:after {
  content: "";
  display: table;
  clear: both;
}
/* 底部 */
.footer {
  padding: 20px;
  text-align: center;
  background: #ddd;
  margin-top: 20px;
}
/* 响应式布局 - 屏幕尺寸小于 800px 时，两列布局改为上下布局 */
@media screen and (max-width: 800px) {
  .columnleft, .columnright {
    width: 100%;
    padding: 0;
  }
}
/* 响应式布局 -屏幕尺寸小于 400px 时，导航等布局改为上下布局 */
@media screen and (max-width: 400px) {
  .navtop a {
    float: none;
    width: 100%;
  }
}
/* 按钮 */
.buttonbrowse{
  width: 100%;
  background-color: #f1f1f1;
  border-radius: 4px;
  border: none;
  text-align: left;
  text-decoration: none;
  display: inline-block;
  font-size: 18px;
  margin: 4px 2px;
  cursor: pointer;
}
.button{
  background-color: #4CAF50;
  color: white;
  border-radius: 4px;
  border: none;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 20px;
  margin: 4px 2px;
  cursor: pointer;
}
.button:hover {
  background-color: #e7e7e7;
  color: black;
}
/* 下拉列表 */
.select {
  width: 100%;
  padding: 16px 20px;
  border: none;
  border-radius: 4px;
  background-color: #f1f1f1;
  font-size: 16px;
  /* width: 50%; */
}
/* 表单 */
form{
  border-radius: 5px;
  /* background-color: #f2f2f2; */
  padding: 20px;
}
.flash {
  margin: 1em 0;
  padding: 1em;
  background: #cae6f6;
  border: 1px solid #377ba8;
}

.title {
  text-align: center;
  font-size: 25px;
  margin-top: 50px;
}
.divupload {
  width: 500px;
  height: 210px;
  line-height: 60px;
  background-color: #fff;
  margin: 30px auto 0;
  border: 2px dashed #ccc;
  border-radius: 10px;
  position: relative;
  cursor: pointer;
  text-align: center;
  line-height: 200px;
  font-size: 17px;
}
.iconupload {
  width: 30px;
  height: 30px;
  margin: 90px auto 0;
  display: block;
  opacity: 0.5;
}
#fileinput {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0;
  cursor: pointer;
}
#buttonupload {
  width: 500px;
  height: 40px;
  border: none;
  outline: none;
  border-radius: 5px;
  font-size: 17px;
  margin: 15px auto;
  background: #39f;
  color: #fff;
  cursor: pointer;
}
#buttonpredict {
  width: 500px;
  height: 40px;
  border: none;
  outline: none;
  border-radius: 5px;
  font-size: 17px;
  margin: 15px auto;
  /* background: #39f; */
  background-color: #4CAF50;
  color: #fff;
  cursor: pointer;
}
.progress {
  width: 500px;
  margin: 15px auto;
}
.progress progress {
  width: 500px;
  height: 30px;
}
#ret {
  text-align: center;
  font-size: 16px;
  margin-top: 20px;
}
#ret video {
  width: 300px;
}
#returl {
  text-align: center;
  font-size: 16px;
  margin-top: 20px;
}